Group 1 - Alkali Metals

jadepalmer98
Mind Map by , created almost 6 years ago

GCSE Chemistry (C3) Mind Map on Group 1 - Alkali Metals, created by jadepalmer98 on 10/30/2013.

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jadepalmer98
Created by jadepalmer98 almost 6 years ago
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Group 1 - Alkali Metals
1 As you go down Group 1, the alkali metals become...
1.1 1- Bigger atoms
1.2 2- More reactive
1.3 3 - Higher density
1.4 4 - Lower melting point
1.5 5 - Lowing boiling point
2 1) The alkali metals are very reactive
2.1 Have to be stored in oil and handled with forceps
3 2) They are lithium, sodium, potassium and a few others
3.1 Learn them! Also rubidium and caesium
4 3) All have 1 outer electron
4.1 Makes them very reactive and have similar properties
5 4) All form 1+ ions
5.1 Keen to lose their one outer electron
6 5) Always form ionic compounds
6.1 So keen to lose the outer electron there's no way they'd consider sharing - covalent bonding out of the question
7 6) Reaction with water produces hydrogen gas

Annotations:

  • 1 - When lithium, sodium or potassium are put in water, they react very vigorously 2 - Move around the surface fizzing furiously 3 - Produce hydrogen - potassium gets hot enough to ignite it. A lighted splint will indicate hydrogen by producing the 'squeaky pop' as H2 ignites 4 - They form a hydroxide in solution - ie. aqueous OH- ions 2Na(s)+2H(2)0(l) = 2NaOH(aq)+H(2)(g) 2K(s)+2H(2)0(l)= 2KOH(aq)+H(2)(g)

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